Improvement in convertible skates



' T. T.. H. HARWIOODQ Convertible Skate.

No; 2 4,563. Patnted A ri|'2 2,1's 79.

V Inventof: I

, provemen t.

. 'l'. 'l. HUNTER'llAlHVQOD,

OF DETROLT, MlCHIGAX.

IMPROVEMENT iN CONVERTlBLE SKATES.

S wrl ln-nnmi'inmnig part r more Patent an. 14,563, tlfllt'll April22,1379; llplllli'ililflll tiled Ma 31, 187s.

To all about it may concern:

lie it known'that 1,1. HUNTER HAR- woon, ot' the city of Detroit, Stateof Michigan, have invented a Convertible Skate, oi. which the followingis a specification.

The object of my invention is to construct a skate which may be used onthe ice and on a iioor or pavement alterni'ttely by making itinterchangeable from a roller-skate to an iceskate, the rollers and theskate-iron being in ude adjustable and removable upon the same frame forthat purpose, as hereinafter more fully described.

1n the accompanyin drawings, Figure 1 is a side view of a roller-skate,showing my im- Fig. 2 is a side view, represent ing my improved skatewith iron runner attached in lieu ot't erollers. Fig. 3 is acrosssectionof skate-stock, with end elevation of roller attachment. Ii 4: is across-section of skatestock, with end elevation of iron blade attached;Fig. 5 is a bottom-plan view of beveled dovetail seat. Fig. 6 is aperspective view of Fig. 2, and Fig. 'I a perspective view or" anadjustable roller-frame.

The same letters refer to like parts in each of the figures.

A I) represent a metal socket or slide, which is composed of thebed'plate A and two projecting bars, I, the adjacent inner surfaces ofwhich are made in dovetail shape, and slightly divergent from one end tothe other, thus forming a key-scat for the reception of the wedge-blockd, hereinafter described. This seat is securely fastened to the frame orstock of the skate by means of two or more lugs, c, which project fromthe bed-plate A, and by screws introduced through them into the body ofthe frame. If the stock or frame of the such manner that it may bepassed lon gitudi- '1 nally into it from one end of the seat until it issecurely driven home, and thus firmly and rigidly held between the bars1;. One end of this-block d is provided with a lug or longitudinalprojection, 0, through which aset-screw, f, is passed, whichscrews intoa similarlyformed projection upon the seat or bed-plate .A, or into thebody of the frame or stock, as

may be preferred. Two or" these sockets or slidesA I) are attached uponthe bottom side of the skate-stock, as shown in the drawin s. The twowedgeblocks d (shown in Figs. 1, J, and 7) are provided with suitablehearings or frame-work for the support of the rollers g, so

that the skate maybe used as a roller-skate upon a floor or pavement.

In Figs. 4 and 6 the skate is shown as converted into a blade-skate foruse upon ice, an iron runner, 71, being" sulntitutcd for the rollers. Inthis form the blocks d are provided with jaws j, between which the ironor steel blade ii is secure y hold by one or more rivets, In case theblade or runner is made of cast metal, the blocks d may be formedthereon as stock. At every successive stride of the skater in skatingforward, the blade is driven harder and tighter into the seat, andshould the skater strike upon obstructions on the ice the same effectwill be produced, rendering a disconnection of theiron from the frame animpossibility during the forward movements of the skater. The singleset-screw f at the heel of the skate, Figs. 2, 4, and 6, isall-sufficient to hold the iron in place during the backward movement. 7

Although I insist that the dovetail shape of the block d and itscorresponding seat A b shouldbe combined with the longitudinal wedgeshape (more clearly shown in Fig. 5) in order to obtain the most perfectand rigid connection of the two parts, I do not debar myself from usingeither the dovetailed or.

the wedge shape singly. Should it be pre ferred, for instance, 'to formthe sides I) of the seat A b, as well as the block (I, of wrought metal,then the dovetail shape shown in Figs. 3 and 4 may be dispensed with,and the longitudinal wedge shape will be sufiieient to furnish a firmand rigid connection of the two parts. The sides or bars 7) may in thatcase have an angular or L-sha-ped cross-section substituted for theirdovetailed form, and will overlap the edges of the block (I, which isslid in between the laps.. In this modified form of the block (I and itsseat, the wedge shape is indispensable.

My improvement is more especially designed for and adapted to thecheaper class of skates, principally used by children; but it may alsobe applied in the construction of the more complicated varieties of andimprovements in both the roller and the ice skates.

I claim as my invention- 1. In a skate, the combination of the bedplateA and bars b, for reception of wedgeshaped block d, substantially asshown, and for the purpose described.

2 The bed plate A, with beveled side bars, b lfi for reception ofwedge-shaped block (I,

secured to the stock of the skate by inc-ans wed ge-shaped blocks (1 d,with jawsjj, adapted to the corresponding beveled side bars, I b, 01'the bed-plate A, secured by set-screw 1", projected through the lug c,substantially as shown and described.

5. The bed-plate A I), connected to or forming part of the frame of askate, for the purpose and substantially as described.

6. The wedge-shaped block d,-in combination with the bed-plate A b, forthe purpose and substantially as set forth.

7. The set-screw f, in combination with the wedgeshaped block d andbed-plate A b, for the purpose and substantially as herein described.

T. 'r. HUNTER nAnwoon'.

WVitnesses '1. A. MERPHY, WM. M. DOUGLAS.

